Title:
液晶配向剤、液晶配向膜、及びそれを用いた液晶表示素子
Document Type and Number:
Japanese Patent JP6524918
Kind Code:
B2
Abstract:
Provided is a liquid-crystal-aligning agent with which are obtained liquid crystal alignment films that have high voltage retention rates, even with backlight illumination for extended periods, or when impurities have become admixed into the liquid crystals. The liquid-crystal-aligning agent contains a polyamic acid ester having repeating units of formula (1), and an organic solvent. Formula (1) (X is a tetravalent organic group; Y is a divalent organic group; R is a C1-5 alkyl group; and A1 and A2 are hydrogen atoms, or optionally substituted C1-10 alkyl groups, alkenyl groups, or alkynyl groups, at least some of the Y groups being divalent organic groups of formula (2).) Formula (2) (D is a C1-20 divalent saturated hydrocarbon group, unsaturated hydrocarbon group, aromatic hydrocarbon group, or heterocycle, D being optionally substituted. m is 1 or 0.)
Inventors:
Kenji Sakamoto
Tomoe Tomoe
Suzuki Kanako
Natsuki Sato
Naohiro Noda
Tomoe Tomoe
Suzuki Kanako
Natsuki Sato
Naohiro Noda
Application Number:
JP2015561016A
Publication Date:
June 05, 2019
Filing Date:
February 04, 2015
Export Citation:
Assignee:
Nissan Chemical Co., Ltd.
International Classes:
G02F1/1337; C08G73/10
Foreign References:
| WO2014104015A1 | ||||
| WO2013115228A1 |
Attorney, Agent or Firm:
Kenji Izumina
Toshiharu Ogawa
Toshiharu Ogawa